code: def _check_batch_axis_and_force_list(ndim, batch_axis):
      batch_axis = _force_list(batch_axis)
  
      for _axis in batch_axis:
          _check_axis(ndim, _axis)
  
      return batch_axis
  
imports: from __future__ import absolute_import
  from .function_bases import *
  from six.moves import reduce
  import numpy
  import nnabla
label_desc: Use image node_id 3 for calling a global function with example usage: _check_batch_axis_and_force_list(ndim, batch_axis) and returns: batch_axis